Character set about dokku-mysql HOT 3 CLOSED

$ export ADDITIONAL_MYSQLD_CONF="[mysqld]\ncharacter-set-server=utf8\ncollation-server=utf8_general_ci
$ dokku mysql:create japanese-test
$ cat  /var/lib/dokku/services/mysql/japanese-test/config/additional_mysqld_config.cnf
[mysqld]
character-set-server=utf8
collation-server=utf8_general_ci

$ dokku mysql:enter japanese-test mysql -u mysql -p japanese-test -e "SHOW VARIABLES LIKE  'char%';"
+--------------------------+----------------------------+
| Variable_name            | Value                      |
+--------------------------+----------------------------+
| character_set_client     | latin1                     |
| character_set_connection | latin1                     |
| character_set_database   | utf8                       |
| character_set_filesystem | binary                     |
| character_set_results    | latin1                     |
| character_set_server     | utf8                       |
| character_set_system     | utf8                       |
| character_sets_dir       | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+